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Finding the Fourth Proportional to 61,503.94, 92,269.92 and 19,383.80

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Solution

The fourth proportional to 61,503.94, 92,269.92 and 19,383.80 is: 29,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,503.94 : 92,269.92 = 19,383.80 : x
  2. Step 2: Convert to fraction form
    61,503.94/92,269.92 = 19,383.80/x
  3. Step 3: Cross multiply
    61,503.94x = 92,269.92 × 19,383.80
  4. Step 4: Simplify right side
    61,503.94x = 1,788,541,675.30
  5. Step 5: Solve for x
    x = 1,788,541,675.30/61,503.94
  6. Step 6: Final answer
    x = 29,080.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.